Improvement in gages for paper-cutting machines



O. ORANSTON. v Gage for Paper-Cutting Machines.

No. 206,230. Patented July 23,1878.

N FETERS, IPHKJTO'LI'HIOGRAFMER. WASHINGYON, D. C.

UNITED STATES PATENT OFFICE.

CHARLES CR-ANSTON, OF BROOKLYN, NE\V YORK, ASSIGNOR OF ONE-IIALF HIS RIGHT TO EZRA J. STERLING, OF SAME PLAOE.

IMPROVEMENT IN GAGES FOR PAPER-CUTTING MACHINES.

Specificaiiou foriuing part of Letters Patent NO. 206,230, duted July 23, 1878; application filed November 19, 1 flT.

To all whom it may concer'n:

Be it known that I, CHARLES CRANs'roN, of Brooklyn, Kings county, State of New York, have invented certain new and useful Improvements in Gages for Paper-Cutting Machines; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, forming a part of this specification.

In the drawings, Figure lis a plan view; Fig. 2, a side elevation; Fig. 3, arear-end elevation; Fig.4,afront-endelevation; andFigs. 5 and 6 are detail views of the adjustable triple gage.

My inventon chiefly consists in the construction and operation of a three-part or triple gage, so that the process of eutting the three sides of pamphlets at once may be carried on upon the same machine; also, in the peculiar manner of moving and stopping the gages of paper-cutters, all of which will fully appear hereinafter.

In the -drawings, A represeuts the table of the Cutting-machine, the knife passin g the front end, ai,- B, the legs; O, the triple gage, consisting of the box-gage O, provided with a sliding piece, b, so that the gage slides in its slot s in the table. This constitutes the gage for ordinary work.

Ol and C2 are, respectively, slidin g gages, sliding` upon opposite sides of the boxgage O, so that the combined triple gage O Cl O2 may present at once three different gages or distances from the cutting-edge a, as shown at w y z, Fig. 1; or the faces of the three gages may be in the same line, making one broadfaced gage for wide work.

My triple gage is moved by a ehain, cord, or belt, D, the opposite ends of which are secured under the table to the ends of the slidin g piece b. Cord D then passes over pulleys E E, at opposite ends of the table, and is fastened to winding-wheel F on the shaft G. The upper end of the shaft Ghas a hand-wheel, H, at the front of the table, convenient to the op` erator. p

By turnin g the wheel H the cord D is made to draw the gage from front to rear of the table, as may7 be required.

l isa cla-mp-screw, acting upon the periphery of the'hand-whecl, so as to set or lock it at any desired position. If dosired, there may be a scale or series of measures marked on the wheel, so as to indicate the desired position of the gage.

When I wish to work at the side of the machine, instead of moving the gage by means of the cord D, as above described, I use the cogged quadrant-lever L, pivoted to the boxgage O, and Operating in the rack M at the side of the table. The rack M, as shown, rests upon the side gage V.

S is a lever, acting asa positive stop to prevent change of gage. One end of it is pivoted to a standard, R, at rear end of table. The other end is to be raised or lowered by a handle convenientto the operator. The under edge of this stop S is provided with a series of notches, o, which gripe the upper edge of a standard, T, aflixed to the gage. Then the stop is thus set, by griping the standard T the gage cannot move backward or forward, and perfect accuracy and uniformity of a given gage is secured for any number of cut-s. The width and shape of the notches vary to suit the work to be done.

Some of the notches o are niade about oneeighth of an inch wider than the top edge of the standard T, for the following reason: In cutting flat-caps or other similar work the gage is drawn to the proper point for the first cut, and set by stop S, the standard T engaging in the notch o' against the rear edge of the notch. After making this first cut, the flatcap is reversed, and the gage is drawn forward about one-eighth of an inch, the standard T moving that distance in its special notch. The trimming is then removed. The other edges of the paper are then cut in like manner, the gage, of course, being changed in the notches for different-sized cuts.

I have fully described the stop S; but I do not limit myself to any particular form of rigid stop. A simple rigid rod, acting by nuts and screw upon the gage, will answer a good purpose.

U is a set-screw, worked by nuts and carried in upper end of standard R. The end of the stop-lever S is pivoted in the head of screw U7 which is used for exact or niicronieter adjustnient of the gag'e.

The construction and operation of niy invention L re fnllysho\\'nin the drawing's, which are working` drawing's. In ordinary work, such as cntting' flat-caps or cards, I use only the gage O; or, if the work is wide, the faees of gages G1 and C2 are secured in line with face of gage i, as shown in Fig. 1.

In painphlet or book work, three cuts are :madefor front-s, heads, and tails-thus reqniring` three difi'erent gages of cut. For this Work niy triple gage is especially adapted. The gag'e O is drawn and secured in proper position for cutting` the fronts. Gage C1 is then inoved backward and set for proper out of heads. Gage C2 is then lnoved a little farther baekward and set for proper cut of tails. It will now be seen that this triple gage presents three different gages, all aoting` at once, so that. the Cutting-knife may at one stroko cut the fronts, heads, and tails of the three piles of books respectively set against the three faccs of the triple gag'e, and fed rapidly by, if needed, three operatives. Superior aecuracy and speed are secured by my invention'.v

I claiin as my invention 1. The triple g'a-ge composed of slide-g'age C, provided With the lon gitndinally-ad j ustable side gag'es C1 O2, Whereby the fronts, heads, and tails of book-work can be siniultaneously cut.

2. The rigid stopbar S, provided with notches, in combination with a sliding,` gage, snbstantially as described.

3. The combination, With the sliding;1 gage, of a stop-bar having special elongated notches for permitting` the adjustrnent of the gagc therein, snbstantially as and for the pnrpose deseribed.

In testiinony that I claim the above invention I have herennto signed my name this 17 th day of November, 1877.

CHARLES CRANSTOX.

Witncsses:

J. O. OLAYroN, LEONARD A. Ginonnion. 

